Frost dates for Newman, CA
At Newman, the median last spring frost (32°F) is Feb 26 and the median first fall frost is Nov 29, for a typical growing season of 273 days. For a 90% chance that the last frost has passed, wait until Apr 21. Nearby ZIP codes are in USDA hardiness zone 9b.
- Feb 26Last spring frost (median)50% chance of 32°F after this date
- Apr 21Safer planting date10% chance of 32°F after this date
- Nov 29First fall frost (median)50% chance of 32°F by this date
- 273 daysGrowing season (median)between 32°F freezes
Last spring frost dates
The chance that the temperature drops to the threshold after each date.
| Temperature | 90% chance later | 50% chance later | 10% chance later |
|---|---|---|---|
| 36°F | Mar 3 | Apr 7 | May 6 |
| 32°F | Jan 18 | Feb 26 | Apr 21 |
| 28°F | Dec 21 | Jan 20 | Mar 31 |
| 24°F | Dec 16 | Jan 4 | Mar 2 |
First fall frost dates
The chance that the temperature has dropped to the threshold by each date.
| Temperature | 10% chance by | 50% chance by | 90% chance by |
|---|---|---|---|
| 36°F | Oct 26 | Nov 14 | Dec 1 |
| 32°F | Nov 12 | Nov 29 | Dec 21 |
| 28°F | Nov 24 | Dec 12 | Jan 16 |
| 24°F | Dec 7 | Dec 27 | Jan 19 |
Growing season length
Days between the last spring and first fall freeze, as the length reached in 9, 5 and 1 out of 10 years.
| Temperature | 9 in 10 years at least | 5 in 10 years at least | 1 in 10 years at least |
|---|---|---|---|
| 36°F | 184 days | 218 days | 260 days |
| 32°F | 220 days | 273 days | 318 days |
| 28°F | 271 days | 334 days | 365 days |
| 24°F | 338 days | 365 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 87% |
| 24°F | 42% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 95360 | 9b | 25 to 30°F | 5 km |
| 95322 | 9b | 25 to 30°F | 11 km |
| 95313 | 9b | 25 to 30°F | 15 km |
| 95363 | 9b | 25 to 30°F | 23 km |
Not the official USDA Plant Hardiness Zone Map. Zones shown here are the values published in the USDA-ARS / Oregon State University PRISM Group 2023 ZIP code tables, shown unaltered. For the official interactive map, visit planthardiness.ars.usda.gov.
About this station
- NOAA station ID USC00046168, at 37.2811, -121.0178, elevation 27 m (90 ft).
- Data quality: Representative (10+ years), 26 years of freeze data.
- Average days per year at or below 32°F: 23.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Merced 23 WSW (13 km)
- San Luis Dam (26 km)
- Los Banos (28 km)
- Turlock #2 (29 km)
- Los Banos Det Resv (33 km)
- Modesto City Co Airport (39 km)
- Merced (44 km)
- Merced Muni Airport (45 km)
Sources
- NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, annual/seasonal normals by station (version 1.0.1), file dated June 27, 2023; documentation.
- USDA Agricultural Research Service and PRISM Group, Oregon State University, 2023 Plant Hardiness Zone Map ZIP code tables (CONUS, Alaska, Hawaii, Puerto Rico), files dated November 17, 2023. Data © PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 1, 2026. Official map: planthardiness.ars.usda.gov.
- U.S. Census Bureau, 2024 Gazetteer ZIP Code Tabulation Areas file, dated August 30, 2024 (ZIP centroids used to find the nearest station).
Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.